baber/WOPTO huggingface dataset:
Patent GB-505648-A (GB)
Title: Improvements in or relating to the manufacture of containers, particularly for liquids
IPC: C25D11/04
Filed: 1937-08-10
Abstract: 505,648. Aluminium bottles &c. SCHERING AKT.-GES.. Aug. 10, 1937, No. 22016. Void. Convention date, Aug. 10, 1936. [Class 66] Aluminium bottles or like containers, having the surface in contact with the liquid protected by an artificially produced coating of aluminium oxide, phosphate, or fluoride, are employed for storing ether, ethyl chloride, &c. The coating may be electrolytically or chemically formed and may be treated after formation with super. heated steam to close any pores present.
Patent GB-673903-A (GB)
Title: Improvements in or relating to grinding machines
IPC: B24B5/14
Filed: 1949-08-24
Abstract: 673,903. Grinding-machines. DANDO, S. L. Aug. 24, 1950 [Aug. 24, 1949; April 20, 1950], Nos. 22026/49 and 9773/50. Class 60. A grinding machine comprises a headstock 14 having a rotatable spindle 17 mounted for angular adjustment about an axis 21 and a rotatable grinding wheel 41 carried by an upper carriage 36 and a lower carriage 22, each carriage being mounted both for angular adjustment about an axis parallel to the axis 21 and for linear adjustment in a plane perpendicular to the latter. The work spindle 17 is driven by a two-speed motor 19 through bevel gears and a shaft co-axial with the axis 21. The headstock is set by a scale 15 and secured by a locking screw 16. The lower carriage 22 is angularly adjustable on a base 12 by means of a handwheel 20 and a screwed rod and is provided with a dovetail slideway 26 along which a mounting 25 is adjustable by a second screwed rod 27 driven through gears 28, a shaft 29 and a handwheel 32. The upper carriage 36 is angularly adjustable on the mounting 25 and is also provided with a dovetail slide along which a carriage 35 is adjustable. The grinding wheel housing 42 is angularly adjustable on the latter carriage and supports the wheel and its motor 43. Scales and locking screws are provided for each of the angular adjustments. The machine may be used for cylindrical or conical work and large workpieces may be treated by turning the headstock through 90‹ so that the plane of rotation of the workpiece is along the length of the machine. Fig. 3 shows the machine equipped with a tailstock 50 supported by a cross slide 65 and an angular adjustment 66 from a bar 51. The latter forms a slideway for a sleeve 61 which is provided with a key to prevent it from turning and a clamp 62 to hold it in adjusted position. Uprights 52, 53 adjustable in arcuate slots having their centre on the axis of adjustment of the headstock allow the bar 51 to be aligned with the headstock. When the tailstock is not required, the uprights are swung about hinge joints 67, 68 to an inclined position at the rear of the machine. Facing operations may also be carried out and a cup wheel or a wheel rotating about a vertical axis may be used. The machine may be constructed so that the axis of rotation of the work is vertical.
Patent GB-767538-A (GB)
Title: Process for the manufacture of crimped staple fibre
Inventor: WAKERLY ROY GEORGE
IPC: D02G1/12
Filed: 1954-07-28
Abstract: 767,538. Crimping fibres. IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 13, 1955 [July 28, 1954], No. 22048/54. Class 120 (3). In the manufacture of crimped staple fibre, crimp is imported e.g. by compression in a stuffer box, to a wet tow of artificial filaments, the tow is dried, and subsequently the crimp is set by treatment with steam under a superatmospheric pressure. In an example, a wet tow of polyethylene terephthalate is coiled into a perforated drum and dried by blowing air at a temperature of 110‹C i.e. at least 10‹C below the temperature used in the setting treatment, through the drum for 12-22 minutes i.e. when the upper layers of the tow have reached a temperature of about 105‹C. The drum containing the tow is quickly transferred to a steam pressure oven which is closed and evacuated (to a pressure of about 27 inches of mercury) and the crimp is set by introducing steam at 140‹C and a pressure of 35 lbs per square inch which is maintained for about 15 minutes : as the pressure is reduced to atmospheric, moisture condensed on the filaments during the setting operation is evaporated. The tow is uncoiled and whilst still hot, fed to a rotary cutter.
Patent GB-853704-A (GB)
Title: Television receivers
IPC: H04N3/24
Filed: 1959-06-26
Abstract: 853,704. Television. RADIO CORPORATION OF AMERICA. June 26, 1959 [July 21, 1958], No. 22075/59. Class 40(3). [Also in Group XL(c)] In a television receiver including a transistor video detector 18, blanking during vertical retrace is effected by a pulse which is applied to the input circuit of the detector with a polarity corresponding to black-representing signals. As illustrated, the detector is of the P-N-P type and the pulse, which is applied to the base input circuit, is of negative polarity and increases conduction through the detector to produce a positive-going output pulse. The detector feeds the cathode-ray tube grid 40 via a phase-reversing transistor video amplifier 114, and the pulse is thus effective to cut off the tube during blanking. In a second embodiment, Fig. 3 (not shown), the detector is of the N-P-N type and the blanking pulse is arranged to be positive going. The detector in this embodiment feeds the cathode of the cathode-ray tube via the video amplifier. The blanking pulse is derived from the vertical scanning output circuit 48 via a resistor-capacitor shaping network 73-76 and is applied to the transistor base through the secondary winding 16 of I.F. transformer 14. The base bias is provided by a network including a diode 66 which stabilises the operating point against temperature variation. The collector circuit includes a tuned transformer 24 to develop an intercarrier sound signal. The video output is derived across resistor 60 and applied to the input of the video amplifier via contrast-control potentiometer 36. An A.G.C. potential is derived via resistor 62. The video amplifier includes peaking coils 124 and 128 in the collector circuit and a frequency responsive feed-back circuit 132, 134, 136 from collector to base to produce a desired overall frequency and phase response. The vertical scan output circuit 48 comprises an N-P-N transistor 91 in series with a P-N-P transistor 90. The transistors operate in class B with in-phase drive on their bases and the output is taken from the commoned emitters. The bias circuit 102, 104, 106 is made temperature sensitive by the inclusion of a diode 100. Resistor 104 is made variable to permit scan amplitude adjustment. Feed-back from the output is provided via capacitor 108.
Patent GB-959834-A (GB)
Title: Carbon-graphitic material for electrodes-tools
IPC: C01B31/00
Filed: 1960-06-24
Abstract: An electrode is produced by baking a pressed mixture of ground semi-coke containing 12-23% of volatile matter and finely divided carbon.  The semi-coke may be made from coal tar or petroleum.  It may be heated at 200-300 DEG C. in air. The carbon may be in the form of graphite or petroleum coke. The electrode mix may also contain up to 5% of AlCl3 or FeCl3.  Pressing may be at 500-800 kg./cm.2 and baking at 1000-1300 DEG  C. The composition and conditions of heating are such as to avoid the formation of closed pores and blow-holes.
Patent GB-453045-A (GB)
Title: Improvements in or relating to the manufacture of packets of cigarette paper
IPC: A24F17/00
Filed: 1935-01-29
Abstract: 453,045. Wrapping-machines. STRAUS, H. H., 345, West 40th Street, New York, U.S.A. Jan. 29, 1935, No. 22188136. Divided out of 452,977. [Class 94 (i)] A machine for making packets of cigarette papers comprises means for feeding superimposed strips of cigarette paper wrapped in a web of covering material, severing means synchronized with the feeding means and adjustable relatively thereto, and receiving and stacking means. The strips 13 of cigarette paper are fed to overlie a strip 14 of wrapping material fed from a roll 16 controlled by braking means 19. A folding device 21 wraps the covering material about the cigarette papers in the manner described in Specification 452,977, and the assembly is fed forwards by a device 12 of the kind described in Specification 445,600. The severing device 23 is housed between plates 24, 25, Fig. 5, and comprises a shaft 27 having a frame 28 and platen 29 oscillatably mounted thereon. A countershaft 26 carries eccentrics 30 having straps attached to rods 32 reciprocating in holes 33 in the frame 28. The rods 32 carry a crosshead 34 upon which a blade 35 is mounted to co-operate with the platen 29. As the shaft 27 rotates, the knife 35 reciprocates towards and away from the platen to sever lengths of the assembly to form cigarette paper books, and also swings in the direction of the speed of travel of the assembly in order not to interfere with the feeding movement. The completed book or packet 36, Fig. 11, bears a pattern 59, and, in order to ensure that the severing operation is in proper register and to compensate for errors due to creeping, adjusting means are provided. The shaft 27 is driven by bevel gearing 43, 51 ... 54, 56, and can be adjusted during running by a hand wheel 50 and worm 48 engaging a gear 47 on the frame 46 carrying the gears 52, 53. By rotating the frame 46 the timing of the knife can be varied. The severed packets are fed away from the cutting device by an endless chain 68, Fig. 6, carrying rubber &c. bars 69 arranged transversely thereof. The chain passes over a curved track 71 which raises it into contact with a belt 90 passing over pulleys 88, 89. The tension of the chain 68 is maintained by a sprocket 75 and spring 76, and that of the belt 90 by a screw 93 acting upon the arm 86 carrying the pulley 88. The packets pass to a serrated feeding wheel 99 having a peripheral groove 102 to accommodate a tongue 103 on the rear wall 104 of the trough 83. The tongue strips the packet on to the belt 100 forming the bottom of the delivery trough. Specification 440,057 also is referred to.
Patent GB-430551-A (GB)
Title: Improvements in or relating to apparatus for spreading liquid coating compositions, particularly aqueous dispersions of rubber and the like
IPC: B29C70/68
Filed: 1934-07-31
Abstract: <PICT:0430551/IV/1> In apparatus for forming sheets &c. by spreading liquid coating-compositions such as dispersions or solutions of rubber, balata, guttapercha, &c. on an endless belt or a web &c. by means of a spreading knife or blade, the belt or web is supported by a bar presenting an upwardly - directed apical edge positioned beneath the spreading knife or blade.  A rubberized cloth on which rubber &c. sheeting is to be produced, is led from a drum 2 around a vertically adjustable roller 3, between a spreading-knife 5 and a rigid bar 4 presenting an upwardly directed apical edge, and over a heated drying-plate 6.  The roller 3 is carried on threaded blocks 11 and is adjusted by rotating screws 10 by gears 8, 9, or the roller may be adjustably mounted in arcuate slots.  The roller 3 may be driven, e.g. by an endless band 13 passing around a driven roller 12. The rubberized fabric may be provided at each end with plain linen aprons to prevent wastage.  The solution or dispersion may be supplied to the web as described in Specification 429,235.  Natural or artificial dispersions of rubber &c. may be used in concentrated or vulcanized condition.
Patent GB-836641-A (GB)
Title: Degreasing and other tanks for the liquid treatment of articles
Inventor: ELWELL RICHARD
IPC: B08B3/10
Filed: 1957-07-15
Abstract: <PICT:0836641/III/1> A tank 10 for degreasing or washing articles such as small castings is of elongated form and supported with its base clear of the ground by end pedestals constituted by pressure chambers 11 which are interconnected by a pipe 12 connected centrally to a pipe 13 leading to a supply of compressed air, said pressure chambers being fitted with delivery pipes 14 which extend through the base of the tank at various positions so as to discharge air under pressure into the liquid in the tank and create and maintain turbulence therein.  The discharge end of each pipe 14 is provided with a spreader disc 19 to ensure distribution of the turbulence throughout the liquid.  Sludge trays 16 support reticulated grids 20 upon which the articles are placed.  In an alternative embodiment, the articles are suspended in the tank and the grids and sludge trays are dispensed with.
Patent GB-330438-A (GB)
Title: Improvements in or relating to collapsible bellows for photographic cameras and the like
IPC: G03B17/04
Filed: 1929-07-20
Abstract: 330,438. Kershaw, N., and Amalgamated Photographic Manufacturers, Ltd. July 20, 1929. Camera bellows.-A paper or like stiffener for the collapsable bellows of photographic cameras &c. comprises a stencil cut to provide, in correct position, the parallel strips required for reinforcing the pleats of the bellows, and ready to be applied as a whole to the backing material which is to be folded to form the bellows. A stencil may be cut for stiffening each side of the bellows, or a single composite stencil may be cut for stiffening all four sides. The stencil shown comprises four taper sections 1 - - 4, one for stiffening each side of the bellows, cut to form parallel reinforcing strips for the pleats, and interconnected by short strips 5. The stencil is cut from material coated with adhesive so that it may be secured to the backing, which is then pleated, bent about the lines AB, CD, EF, and joined along the edges 6, 7. In the finished bellows, the inwardly-extending folds of the sections 2, 4, and the outwardly-extending folds of the sections 1, 3 lie in common planes, and the serrated edges of the sections 1, 3 provide recesses for the inwardly-extending folds of the sections 2, 4.
Patent GB-777538-A (GB)
Title: Improvements in or relating to propylene polymers and copolymers and the preparationthereof
IPC: C08F10/06
Filed: 1955-08-03
Abstract: Catalysts for the polymerization of propylene (see Group IV(a)) comprise a compound of formula MnXm, MnRm or Mn(OR)m, wherein M is Ti, Zr, Ce, V, Nb, Ta, Cr, Mo or W, X is a halogen atom, R is a monovalent substituted or unsubstituted hydrocarbon radical and n and m are integers, at least part of the metal M being in a valency state of 2, or the compound being associated with sufficient of a reducing agent to reduce at least part of the metal present to a valency state of 2.  Catalysts components specified are titanium tetrachloride and tetraethyl, and vanadium and zirconium tetrachlorides, in conjunction with Grignard reagents (such as phenyl magensium bromide), metal alkyls or aryls (such as cadmium dialkyls, tetrabutyl tin and lithium hdyrocarbons, e.g. lithium aluminium tetrahexyl, -heptyl or -decyl), zinc and metals above zinc in the electromotive series, and metal hydrides.  The metallic catalysts are said to form coordination complexes with each other or with the other ingredients.  Subsequent to polymerization the catalysts may be destroyed with materials such as methanol, isopropanol, methanol/acid, hydrochloric acid, water and acetone.  Specifications 497,643 [Group IV], 548,795 [Group XX], 579,883, 590,816 and 598,822 [all are in Group IV] are referred to.
Patent GB-678293-A (GB)
Title: A multiple point connector for scaffold braces and the like
IPC: E04G7/02
Filed: 1949-08-29
Abstract: 678,293. Struts for scaffolding &c. CAPRA, E. B. Aug. 29, 1949 [Jan. 10, 1949]. No. 22378/49. Class 20(ii) [Also in Group XXV] A multiple point connector for connecting together the ends of braces which converge to a point or which intersect one another in the same plane for use with coupling members of the kind described in Specification 676,887, [Group XXVIII], comprises a through member and one or more connector members pivotally connected at one end to the through member at an angle thereto, the ends of the through member and the free end of each connector member being formed wtih spaced ridges or ribs to coact respectively with the ribs or ridges on the inner surface of a coupling member. As shown in Fig. 2, the strut members 2, which have ribbed ends, may be connected, by means of the members 4, 5 which form the coupling member referred to, to the grooved ends 22 of a tube 10 and to the grooved ends 22 of connectors F which are pivotally mounted between flanges 11 on the central portion of the tube 10 and between brackets 14 mounted externally on the flanges 11 and tube 10. An embodiment for use with struts which lie in the same plane, Fig 3, comprises a member 32 which passes pivotally through a rigid connector 30 and which has open ends adapted to pivotally receive connectors F.
Patent GB-1537008-A (GB)
Title: Ignition systems
IPC: F02P9/00
Filed: 1977-05-27
Abstract: 1537008 Ignition systems ROBERT BOSCH GmbH 27 May 1977 [28 May 1976] 22429/77 Heading F1B An ignition system, which is intended to be particularly suitable for use in internal combustion engines, comprises an ignition coil 18 whose primary circuit incorporates an electrical switch 16, an ignition control device for controlling the electrical switch, in which control device there is provided a trigger circuit 22 having a built-in timing circuit for producing a plurality of ignition sparks at each instant of ignition which is predeterminable by means of an ignition mark generator 10 and a further timing circuit 23 for controlling the electrical switch, the further timing circuit being controllable by the ignition mark generator 10 and also by a signal of the trigger circuit 22. The ignition mark generator 10 shown is an inductive generator but it may be in the form of a contact breaker or a Hall type generator. The ignition timing may be controlled in dependence upon, for example, engine speed, pressure in the intake pipe, temperature or the position of a butterfly valve. In a modification (not shown) the spark band frequency depends upon the rate of charge of a capacitor and thus upon the supply voltage.
Patent GB-493970-A (GB)
Title: Improvements in or relating to processes of concentrating phosphate-bearing minerals
IPC: B03D1/004
Filed: 1937-08-16
Abstract: A process of concentrating ores containing phosphate minerals and siliceous gangue comprises agitating the ore pulp with crude quinoline or bone oil as collecting agent for the siliceous gangue and an acid capable of forming with water a distinctly acid solution, and then separating, e.g. by froth flotation or tabling, a material relatively rich in gangue, the remaining material being collected as the concentrate.  The acid may be, for example, sulphuric, sulphurous, hydrochloric, hydrofluoric, hydrofluosilicic, arsenic, selenic, acetic, or lactic acid. Instead of the acid, a salt may be used which gives an acid solution with water provided that it will function as an activating agent to cause the quinoline &c. to have a preferential affinity for the gangue.  The preferred salts are sodium silicofluoride, ammonium silicofluoride, stannic chloride, phosphorus trichloride, silicon tetrachloride, thionyl chloride, and potassium bisulphate; other salts referred to being stannous chloride, nickel sulphate, zinc sulphate, phosphorus pentachloride, cupric chloride, sodium dihydrogen phosphate, and sulphur monochloride.  Instead of adding bone oil and acid, the bone oil or a solution of bone oil in alcohol may be pretreated with the acid and the product used either as such or after solution in alcohol.  Alternatively the product may be treated with water to dissolve some or all of the constituents, either the solution or, if solution has been incomplete, the residue being used.  Other collectors, e.g. mineral oils, and frothers may be added to the pulp.  Additional reagents referred to include a frother consisting of crude rosin residue dissolved in kerosene oil, fuel oil, and caustic soda.  When bone oil and acid are added to the pulp, the bone oil is preferably added before the acid.
Patent GB-500655-A (GB)
Title: Improvements in and relating to anti-dazzle devices
IPC: A61B3/00
Filed: 1937-08-17
Abstract: 500,655. Vehicle &c. lamps. GLANVILLE, JUN., A., and POPE, F. W. Aug. 17, 1937, No. 22557. [Class 75 (iv)] An anti-dazzle device for vehicle headlamps, searchlights, floodlights, &c. comprises a rotary screen A A<2> disposed in the path of the beam and co-operating with a fixed masking element E, the screen and the masking element being both of non-uniform opacity and/or colour in a circumferential direction. In the form shown, the masking element E consists of two sectors of orange-coloured celluloid, while the rotary screen comprises two series of celluloid vanes A<1>, A<2>, the former being of deep blue colour and the latter of less dense crimson colour. Alternatively, one of the series may be made of metal or other opaque material. The screen A<1>, A<2> is mounted on the spindle C and may be rotated by wind pressure or by an electric motor. The complete device is mounted on the lamp by means of three arms F, one of which is fitted with a spring G to permit ready attachment to the lamp casing and to hold the device securely in position. In a modification, the arms F are replaced by a rubber suction cup.
Patent GB-254908-A (GB)
Title: Improvements in or connected with cutting machines for use in mining coal and other minerals
IPC: E21C35/02
Filed: 1925-09-12
Abstract: 254,908. Mavor & Coulson, Ltd., and Mavor, J. B. Sept. 12, 1925. Coal-cutting machines.-In a mining-machine comprising a cutter carrying member capable of being slued about the axis of the gear head-casing, a bolt, movable endwise and capable of being shot into the locking position, is provided for locking the member and head-casing against relative rotation, the endwise movement being produced by relative rotation between a helical race and an abutment. As shown, brackets 2, 3 on the head-casing have guides for the movable bolt C which carries an abutment 5 engaging a helical race D which has rests or indents at intervals and has a flat upper surface 6. The bolt is non-rotatable and is moved out of engagement with the cutter-carrier B by rotating the helical race by means of a tommybar inserted in an opening 9. In a modification, the helical race is fixed and the bolt rotatable, while in other forms the race is carried bv the bolt and the abutment by the head-casing, either the bolt or the abutment being rotatable.
Patent GB-258861-A (GB)
Title: Improvements in ore dressing or like machines
IPC: B03B5/62
Filed: 1926-09-16
Abstract: 258,861. Velten, H. Sept. 28, 1925, [Convention date]. Pneumatic separating. - In ore dressing or like apparatus wherein separation is effected by upward streams of gas, the surfaces or elements bounding the orifices through which the upward streams pass move in the same direction as the streams and at substantially the same velocity. One of the elements may be an endless band b and the other a drum c, or both may be drums, one of which may be provided with discs at its ends to overlap the other drum.